driftfile /var/lib/ntp/drift
{% for item in groups[ntp_servers_name] %}
server {{ hostvars[item]['ansible_host'] }}
restrict {{ hostvars[item]['ansible_host'] }}
{% endfor %}

#server cn.pool.ntp.org
#server 0.cn.pool.ntp.org
#server 1.cn.pool.ntp.org
#server 2.cn.pool.ntp.org
#server 3.cn.pool.ntp.org

includefile /etc/ntp/crypto/pw
keys /etc/ntp/keys
disable monitor